Fine structure of human amniotic epithelium in early pregnancy.
D000650:Amnion / Q000166:cytology*; D002454:Cell Differentiation; D004847:Epithelial Cells; D004848:Epithelium / Q000502:physiology; D005260:Female; D005865:Gestational Age; D006801:Humans; D008264:Macrophages; D011247:Pregnancy / Q000502:physiology*